Dippa, depending on the water state, on 20/25 knots in open ocean, I with 72 kilos go with my wave board and 5.7 , could be that you with 80 kilos could go nice with a smaller fin, the mast one inch...

Hi Unreg, mine is an 101 2009 and i use it with the "old" Deb 36 sl2 and Ka6.6 and 7.2 NP, have other fins but i must say that sl2 feels great, slipery, fast and raises the board really up what makes...

Had the same question as you last 2008 and got an IS111, as my weight is 71kg i felt it a little big when in large chop, this year i switched to an IS 101 and for my weight it is perfect with NP 7.2...

Hi again Floyd, yes GPSR is compatible and you can also test Real Speed at http://www.intellimass.com/RealSpeed/Index.htm
My 2GB is not full yet in one year use, I think it is possible to erase data...

Hi Floyd, i agree with Mark, GT-31 is "the one" for speed sailing and the only one fully accepted in GPS Speed Surfing championships, it has the last generation chip Sirf III and is the only one that...